luboslenco
661 lines
26 KiB
Haxe
661 lines
26 KiB
Haxe
package arm;
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import armory.system.Cycles;
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import armory.system.CyclesFormat;
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import armory.system.CyclesShader;
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import armory.system.CyclesShader.CyclesShaderContext;
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import iron.data.SceneFormat;
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import iron.data.ShaderData;
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import iron.data.ShaderData.ShaderContext;
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import iron.data.MaterialData;
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import iron.data.SceneFormat;
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class MaterialBuilder {
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public static function make_paint(data:CyclesShaderData, matcon:TMaterialContext):CyclesShaderContext {
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var layered = UITrait.inst.selectedLayer != UITrait.inst.layers[0];
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var eraser = UITrait.inst.brushType == 1;
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var context_id = 'paint';
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var con_paint:CyclesShaderContext = data.add_context({
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name: context_id,
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depth_write: false,
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compare_mode: 'always', // TODO: align texcoords winding order
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// cull_mode: 'counter_clockwise',
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cull_mode: 'none',
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blend_source: layered ? 'blend_one' : 'source_alpha',
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blend_destination: layered ? 'blend_zero' : 'inverse_source_alpha',
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blend_operation: 'add',
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alpha_blend_source: 'blend_one',
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alpha_blend_destination: eraser ? 'blend_zero' : 'blend_one',
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alpha_blend_operation: 'add',
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vertex_elements: [{name: "pos", data: 'short4norm'},{name: "nor", data: 'short2norm'},{name: "tex", data: 'short2norm'}] });
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con_paint.data.color_writes_red = [true, true, true, true];
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con_paint.data.color_writes_green = [true, true, true, true];
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con_paint.data.color_writes_blue = [true, true, true, true];
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if (UITrait.inst.brushType == 3) { // Bake AO
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con_paint.data.color_writes_green[2] = false; // No rough
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con_paint.data.color_writes_blue[2] = false; // No met
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}
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var vert = con_paint.make_vert();
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var frag = con_paint.make_frag();
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frag.ins = vert.outs;
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#if kha_direct3d11
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vert.write('vec2 tpos = vec2(tex.x * 2.0 - 1.0, (1.0 - tex.y) * 2.0 - 1.0);');
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#else
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vert.write('vec2 tpos = vec2(tex.x * 2.0 - 1.0, tex.y * 2.0 - 1.0);');
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#end
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var faceFill = UITrait.inst.brushType == 2 && UITrait.inst.fillTypeHandle.position == 1;
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if (!faceFill) {
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// Fix seams at uv borders
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vert.add_uniform('vec2 sub', '_sub');
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vert.write('tpos += sub;');
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}
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vert.write('gl_Position = vec4(tpos, 0.0, 1.0);');
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vert.add_uniform('mat4 WVP', '_worldViewProjectionMatrix');
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vert.add_out('vec4 ndc');
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vert.write_attrib('ndc = mul(vec4(pos.xyz, 1.0), WVP);');
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#if kha_direct3d11
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frag.write_attrib('vec3 sp = vec3((ndc.xy / ndc.w) * 0.5 + 0.5, (ndc.z / ndc.w));');
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#else
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frag.write_attrib('vec3 sp = vec3((ndc.xyz / ndc.w) * 0.5 + 0.5);');
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#end
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frag.write_attrib('sp.y = 1.0 - sp.y;');
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frag.add_uniform('float paintDepthBias', '_paintDepthBias');
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#if kha_direct3d11
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frag.write_attrib('sp.z -= paintDepthBias * 4;'); // small bias or !paintVisible
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#else
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frag.write_attrib('sp.z -= paintDepthBias;');
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#end
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if (UITrait.inst.brushPaint != 0) frag.ndcpos = true;
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if (UITrait.inst.brushType == 3) { // Bake ao
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frag.wposition = true;
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frag.n = true;
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}
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frag.add_uniform('vec4 inp', '_inputBrush');
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frag.add_uniform('vec4 inplast', '_inputBrushLast');
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frag.add_uniform('float aspectRatio', '_aspectRatioWindowF');
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frag.write('vec2 bsp = sp.xy * 2.0 - 1.0;');
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frag.write('bsp.x *= aspectRatio;');
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frag.write('bsp = bsp * 0.5 + 0.5;');
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frag.add_uniform('sampler2D paintdb');
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if (UITrait.inst.brushType == 4) { // Pick color id
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frag.add_out('vec4 fragColor');
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#if (kha_opengl || kha_webgl)
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frag.write('if (sp.z > textureLod(paintdb, vec2(sp.x, 1.0 - bsp.y), 0).r) discard;');
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#else
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frag.write('if (sp.z > textureLod(paintdb, vec2(sp.x, bsp.y), 0).r) discard;');
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#end
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frag.write('vec2 binp = inp.xy * 2.0 - 1.0;');
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frag.write('binp.x *= aspectRatio;');
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frag.write('binp = binp * 0.5 + 0.5;');
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frag.write('float dist = distance(bsp.xy, binp.xy);');
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frag.write('if (dist > 0.025) discard;'); // Base this on camera zoom - more for zommed in camera, less for zoomed out
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frag.add_uniform('sampler2D texcolorid', '_texcolorid');
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vert.add_out('vec2 texCoord');
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vert.write('texCoord = fract(tex);'); // TODO: fract(tex) - somehow clamp is set after first paint
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frag.write('vec3 idcol = textureLod(texcolorid, texCoord, 0).rgb;');
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frag.write('fragColor = vec4(idcol, 1.0);');
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con_paint.data.shader_from_source = true;
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con_paint.data.vertex_shader = vert.get();
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con_paint.data.fragment_shader = frag.get();
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return con_paint;
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}
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var numTex = UITrait.inst.paintHeight ? 4 : 3;
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frag.add_out('vec4 fragColor[$numTex]');
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frag.add_uniform('float brushRadius', '_brushRadius');
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frag.add_uniform('float brushOpacity', '_brushOpacity');
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frag.add_uniform('float brushStrength', '_brushStrength');
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if (UITrait.inst.brushType == 0 || UITrait.inst.brushType == 1) { // Draw / Erase
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#if (kha_opengl || kha_webgl)
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frag.write('if (sp.z > textureLod(paintdb, vec2(sp.x, 1.0 - bsp.y), 0).r) { discard; }');
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#else
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frag.write('if (sp.z > textureLod(paintdb, vec2(sp.x, bsp.y), 0).r) { discard; }');
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#end
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if (UITrait.inst.brushPaint == 2) { // Decal
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frag.write('float dist = 0.0;');
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}
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else {
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frag.write('vec2 binp = inp.xy * 2.0 - 1.0;');
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frag.write('binp.x *= aspectRatio;');
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frag.write('binp = binp * 0.5 + 0.5;');
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// Continuos paint
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frag.write('vec2 binplast = inplast.xy * 2.0 - 1.0;');
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frag.write('binplast.x *= aspectRatio;');
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frag.write('binplast = binplast * 0.5 + 0.5;');
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frag.write('vec2 pa = bsp.xy - binp.xy, ba = binplast.xy - binp.xy;');
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frag.write('float h = clamp(dot(pa, ba) / dot(ba, ba), 0.0, 1.0);');
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frag.write('float dist = length(pa - ba * h);');
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if (!UITrait.inst.mirrorX) {
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frag.write('if (dist > brushRadius) { discard; }');
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}
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else {
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frag.write('vec2 binp2 = vec2(0.5 - (binp.x - 0.5), binp.y), binplast2 = vec2(0.5 - (binplast.x - 0.5), binplast.y);');
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frag.write('vec2 pa2 = bsp.xy - binp2.xy, ba2 = binplast2.xy - binp2.xy;');
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frag.write('float h2 = clamp(dot(pa2, ba2) / dot(ba2, ba2), 0.0, 1.0);');
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frag.write('float dist2 = length(pa2 - ba2 * h2);');
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frag.write('if (dist > brushRadius && dist2 > brushRadius) { discard; }');
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}
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//
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// frag.write('float dist = distance(bsp.xy, binp.xy);');
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// frag.write('if (dist > brushRadius) { discard; }');
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}
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}
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else { // Fill, Bake
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frag.write('float dist = 0.0;');
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}
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if (UITrait.inst.colorIdPicked) {
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vert.add_out('vec2 texCoordPick');
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vert.write('texCoordPick = fract(tex);');
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frag.add_uniform('sampler2D texpaint_colorid0'); // 1x1 picker
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frag.add_uniform('sampler2D texcolorid', '_texcolorid'); // color map
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frag.add_uniform('vec2 texcoloridSize', '_texcoloridSize'); // color map
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frag.write('vec3 c1 = texelFetch(texpaint_colorid0, ivec2(0, 0), 0).rgb;');
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frag.write('vec3 c2 = texelFetch(texcolorid, ivec2(texCoordPick * texcoloridSize), 0).rgb;');
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frag.write('if (any(c1 != c2)) { discard; }');
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}
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else if (faceFill) {
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vert.add_out('vec2 texCoordPick');
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vert.write('texCoordPick = fract(tex);');
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frag.add_uniform('sampler2D gbuffer2');
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frag.add_uniform('sampler2D textrianglemap', '_textrianglemap'); // triangle map
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frag.add_uniform('vec2 textrianglemapSize', '_textrianglemapSize');
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frag.add_uniform('vec2 gbufferSize', '_gbufferSize');
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#if (kha_opengl || kha_webgl)
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frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2(inp.x * gbufferSize.x, (1.0 - inp.y) * gbufferSize.y), 0).ba;');
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// frag.write('vec2 texCoordInp = textureLod(gbuffer2, vec2(inp.x, (1.0 - inp.y)), 0).ba;');
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#else
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frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2(inp.x * gbufferSize.x, inp.y * gbufferSize.y), 0).ba;');
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#end
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frag.write('vec4 c1 = texelFetch(textrianglemap, ivec2(texCoordInp * textrianglemapSize), 0);');
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frag.write('vec4 c2 = texelFetch(textrianglemap, ivec2(texCoordPick * textrianglemapSize), 0);');
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frag.write('if (any(c1 != c2)) { discard; }');
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}
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// Texture projection - texcoords
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if (UITrait.inst.brushPaint == 0) {
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vert.add_uniform('float brushScale', '_brushScale'); // TODO: Will throw uniform not found
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vert.add_out('vec2 texCoord');
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vert.write('texCoord = tex * brushScale;');
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}
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// Texture projection - project
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else {
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frag.add_uniform('float brushScale', '_brushScale');
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frag.write_attrib('vec2 uvsp = sp.xy;');
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// Decal
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if (UITrait.inst.brushPaint == 2) {
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frag.write_attrib('vec2 binp = inp.xy * 2.0 - 1.0;');
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frag.write_attrib('binp = binp * 0.5 + 0.5;');
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frag.write_attrib('uvsp -= binp;');
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frag.write_attrib('uvsp.x *= aspectRatio;');
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// frag.write_attrib('uvsp *= brushScale;');
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frag.write_attrib('uvsp *= vec2(7.2, 7.2);');
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frag.write_attrib('uvsp += vec2(0.5, 0.5);');
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frag.write_attrib('if (uvsp.x < 0.0 || uvsp.y < 0.0 || uvsp.x > 1.0 || uvsp.y > 1.0) { discard; }');
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}
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else {
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frag.write_attrib('uvsp.x *= aspectRatio;');
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}
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Cycles.texCoordName = 'fract(uvsp * brushScale)'; // TODO: use prescaled value from VS
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}
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Cycles.parse_height_as_channel = true;
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var sout = Cycles.parse(UINodes.inst.canvas, con_paint, vert, frag, null, null, null, matcon);
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Cycles.parse_height_as_channel = false;
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Cycles.texCoordName = 'texCoord';
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var base = sout.out_basecol;
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var rough = sout.out_roughness;
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var met = sout.out_metallic;
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var occ = sout.out_occlusion;
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var nortan = Cycles.out_normaltan;
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var height = sout.out_height;
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var opac = sout.out_opacity;
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frag.write('vec3 basecol = $base;');
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frag.write('float roughness = $rough;');
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frag.write('float metallic = $met;');
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frag.write('float occlusion = $occ;');
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frag.write('vec3 nortan = $nortan;');
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frag.write('float height = $height;');
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frag.write('float opacity = $opac * brushOpacity;');
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if (eraser) frag.write(' float str = 1.0 - opacity;');
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else frag.write(' float str = clamp(opacity * (brushRadius - dist) * brushStrength, 0.0, 1.0);');
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if (UITrait.inst.mirrorX && UITrait.inst.brushType == 0) { // Draw
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frag.write('str += clamp(opacity * (brushRadius - dist2) * brushStrength, 0.0, 1.0);');
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frag.write('str = clamp(str, 0.0, 1.0);');
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}
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frag.write(' fragColor[0] = vec4(basecol, str);');
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frag.write(' fragColor[1] = vec4(nortan, 1.0);'); // nortan.xy *= str
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frag.write(' fragColor[2] = vec4(occlusion, roughness, metallic, str);');
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if (UITrait.inst.paintHeight) {
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frag.write(' fragColor[3] = vec4(1.0, 0.0, height, str);');
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}
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if (!UITrait.inst.paintBase) frag.write('fragColor[0].a = 0.0;');
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if (!UITrait.inst.paintNor) frag.write('fragColor[1].a = 0.0;');
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if (!UITrait.inst.paintOcc) con_paint.data.color_writes_red[2] = false;
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if (!UITrait.inst.paintRough) con_paint.data.color_writes_green[2] = false;
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if (!UITrait.inst.paintMet) con_paint.data.color_writes_blue[2] = false;
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if (UITrait.inst.brushType == 3) { // Bake AO
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frag.write('fragColor[0].a = 0.0;');
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frag.write('fragColor[1].a = 0.0;');
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// Apply normal channel
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frag.vVec = true;
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frag.add_function(armory.system.CyclesFunctions.str_cotangentFrame);
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#if kha_direct3d11
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frag.write('mat3 TBN = cotangentFrame(n, vVec, texCoord);');
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#else
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frag.write('mat3 TBN = cotangentFrame(n, -vVec, texCoord);');
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#end
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frag.write('n = nortan * 2.0 - 1.0;');
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frag.write('n.y = -n.y;');
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frag.write('n = normalize(mul(n, TBN));');
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frag.write('const vec3 voxelgiHalfExtents = vec3(2.0, 2.0, 2.0);');
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frag.write('vec3 voxpos = wposition / voxelgiHalfExtents;');
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frag.add_uniform('sampler3D voxels');
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frag.add_function(armory.system.CyclesFunctions.str_traceAO);
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frag.n = true;
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var strength = UITrait.inst.bakeStrength;
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var radius = UITrait.inst.bakeRadius;
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var offset = UITrait.inst.bakeOffset;
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frag.write('fragColor[2].r = 1.0 - traceAO(voxpos, n, voxels, $radius, $offset) * $strength;');
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}
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Cycles.finalize(con_paint);
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con_paint.data.shader_from_source = true;
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con_paint.data.vertex_shader = vert.get();
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con_paint.data.fragment_shader = frag.get();
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return con_paint;
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}
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public static function make_mesh_preview(data:CyclesShaderData, matcon:TMaterialContext):CyclesShaderContext {
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var context_id = 'mesh';
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var con_mesh:CyclesShaderContext = data.add_context({
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name: context_id,
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depth_write: true,
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compare_mode: 'less',
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cull_mode: 'clockwise',
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vertex_elements: [{name: "pos", data: 'short4norm'},{name: "nor", data: 'short2norm'},{name: "tex", data: 'short2norm'}] });
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var vert = con_mesh.make_vert();
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var frag = con_mesh.make_frag();
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frag.ins = vert.outs;
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vert.add_uniform('mat4 WVP', '_worldViewProjectionMatrix');
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vert.add_out('vec2 texCoord');
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vert.write('gl_Position = mul(vec4(pos.xyz, 1.0), WVP);');
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vert.write('texCoord = tex;');
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var sout = Cycles.parse(UINodes.inst.canvas, con_mesh, vert, frag, null, null, null, matcon);
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var base = sout.out_basecol;
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var rough = sout.out_roughness;
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var met = sout.out_metallic;
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var occ = sout.out_occlusion;
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var opac = sout.out_opacity;
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var nortan = Cycles.out_normaltan;
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frag.write('vec3 basecol = pow($base, vec3(2.2, 2.2, 2.2));');
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frag.write('float roughness = $rough;');
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frag.write('float metallic = $met;');
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frag.write('float occlusion = $occ;');
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frag.write('float opacity = $opac;');
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frag.write('vec3 nortan = $nortan;');
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//if discard_transparent:
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var opac = 0.2;//mat_state.material.discard_transparent_opacity
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frag.write('if (opacity < $opac) discard;');
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frag.add_out('vec4 fragColor[3]');
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frag.n = true;
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frag.add_function(armory.system.CyclesFunctions.str_packFloat);
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frag.add_function(armory.system.CyclesFunctions.str_packFloat2);
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frag.add_function(armory.system.CyclesFunctions.str_cotangentFrame);
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frag.add_function(armory.system.CyclesFunctions.str_octahedronWrap);
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// Apply normal channel
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frag.vVec = true;
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#if kha_direct3d11
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frag.write('mat3 TBN = cotangentFrame(n, vVec, texCoord);');
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#else
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frag.write('mat3 TBN = cotangentFrame(n, -vVec, texCoord);');
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#end
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frag.write('n = nortan * 2.0 - 1.0;');
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frag.write('n.y = -n.y;');
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frag.write('n = normalize(mul(n, TBN));');
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frag.write('n /= (abs(n.x) + abs(n.y) + abs(n.z));');
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frag.write('n.xy = n.z >= 0.0 ? n.xy : octahedronWrap(n.xy);');
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frag.write('fragColor[0] = vec4(n.x, n.y, packFloat(metallic, roughness), 1.0);');
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frag.write('fragColor[1] = vec4(basecol.r, basecol.g, basecol.b, packFloat2(occlusion, 1.0));'); // occ/spec
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frag.write('fragColor[2] = vec4(0.0, 0.0, 0.0, 0.0);'); // veloc
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Cycles.finalize(con_mesh);
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con_mesh.data.shader_from_source = true;
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con_mesh.data.vertex_shader = vert.get();
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con_mesh.data.fragment_shader = frag.get();
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return con_mesh;
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}
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public static function make_depth(data:CyclesShaderData, matcon:TMaterialContext, shadowmap = false):CyclesShaderContext {
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var context_id = shadowmap ? 'shadowmap' : 'depth';
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var con_depth:CyclesShaderContext = data.add_context({
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name: context_id,
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depth_write: true,
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compare_mode: 'less',
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cull_mode: 'clockwise',
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color_write_red: false,
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color_write_green: false,
|
|
color_write_blue: false,
|
|
color_write_alpha: false,
|
|
vertex_elements: [{name: "pos", data: 'short4norm'}]
|
|
});
|
|
|
|
var vert = con_depth.make_vert();
|
|
var frag = con_depth.make_frag();
|
|
|
|
frag.ins = vert.outs;
|
|
|
|
// if (shadowmap) {
|
|
// if (UITrait.inst.paintHeight) {
|
|
// con_depth.add_elem('nor', 'short2norm');
|
|
// vert.wposition = true;
|
|
// vert.n = true;
|
|
// vert.add_uniform('sampler2D texpaint_opt');
|
|
// vert.write('vec4 opt = textureLod(texpaint_opt, tex, 0);');
|
|
// vert.write('float height = opt.b;');
|
|
// var displaceStrength = UITrait.inst.displaceStrength * 0.1;
|
|
// vert.write('wposition += wnormal * height * $displaceStrength;');
|
|
|
|
// vert.add_uniform('mat4 LVP', '_lightViewProjectionMatrix');
|
|
// vert.write('gl_Position = LVP * vec4(wposition, 1.0);');
|
|
// }
|
|
// else {
|
|
// vert.add_uniform('mat4 LWVP', '_lightWorldViewProjectionMatrix');
|
|
// vert.write('gl_Position = mul(vec4(pos.xyz, 1.0), LWVP);');
|
|
// }
|
|
// }
|
|
// else {
|
|
vert.add_uniform('mat4 WVP', '_worldViewProjectionMatrix');
|
|
vert.write('gl_Position = mul(vec4(pos.xyz, 1.0), WVP);');
|
|
// }
|
|
|
|
var parse_opacity = shadowmap; // arm_discard
|
|
if (parse_opacity) {
|
|
frag.write_attrib('vec3 n;'); // discard at compile time
|
|
frag.write_attrib('float dotNV;'); // discard at compile time
|
|
// frag.write('float opacity;');
|
|
|
|
Cycles.parse_surface = false;
|
|
var sout = Cycles.parse(UINodes.inst.canvas, con_depth, vert, frag, null, null, null, matcon);
|
|
Cycles.parse_surface = true;
|
|
// parse_surface=False, parse_opacity=True
|
|
var opac = sout.out_opacity;
|
|
frag.write('float opacity = $opac;');
|
|
if (con_depth.is_elem('tex')) {
|
|
vert.add_out('vec2 texCoord');
|
|
vert.write('texCoord = tex;');
|
|
}
|
|
|
|
var opac = 0.2;//mat_state.material.discard_transparent_opacity_shadows
|
|
frag.write('if (opacity < $opac) discard;');
|
|
}
|
|
|
|
Cycles.finalize(con_depth);
|
|
con_depth.data.shader_from_source = true;
|
|
con_depth.data.vertex_shader = vert.get();
|
|
con_depth.data.fragment_shader = frag.get();
|
|
|
|
return con_depth;
|
|
}
|
|
|
|
public static function make_mesh(data:CyclesShaderData):CyclesShaderContext {
|
|
var context_id = 'mesh';
|
|
var con_mesh:CyclesShaderContext = data.add_context({
|
|
name: context_id,
|
|
depth_write: true,
|
|
compare_mode: 'less',
|
|
cull_mode: UITrait.inst.culling ? 'clockwise' : 'none',
|
|
vertex_elements: [{name: "pos", data: 'short4norm'},{name: "nor", data: 'short2norm'},{name: "tex", data: 'short2norm'}] });
|
|
|
|
var vert = con_mesh.make_vert();
|
|
var frag = con_mesh.make_frag();
|
|
|
|
vert.add_out('vec2 texCoord');
|
|
frag.wvpposition = true;
|
|
vert.add_out('vec4 prevwvpposition');
|
|
vert.add_uniform('mat4 VP', '_viewProjectionMatrix');
|
|
vert.add_uniform('mat4 prevWVP', '_prevWorldViewProjectionMatrix');
|
|
vert.wposition = true;
|
|
|
|
// Height
|
|
// TODO: can cause TAA issues
|
|
if (UITrait.inst.paintHeight) {
|
|
vert.add_uniform('sampler2D texpaint_opt');
|
|
vert.write('vec4 opt = textureLod(texpaint_opt, tex, 0);');
|
|
vert.write('float height = opt.b;');
|
|
var displaceStrength = UITrait.inst.displaceStrength * 0.1;
|
|
vert.n = true;
|
|
vert.write('wposition += wnormal * height * $displaceStrength;');
|
|
}
|
|
//
|
|
|
|
vert.write('gl_Position = mul(vec4(wposition.xyz, 1.0), VP);');
|
|
vert.write('texCoord = tex;');
|
|
if (UITrait.inst.paintHeight) {
|
|
vert.add_uniform('mat4 invW', '_inverseWorldMatrix');
|
|
vert.write('prevwvpposition = prevWVP * (invW * vec4(wposition, 1.0));');
|
|
}
|
|
else {
|
|
vert.write('prevwvpposition = mul(vec4(pos.xyz, 1.0), prevWVP);');
|
|
}
|
|
|
|
frag.ins = vert.outs;
|
|
|
|
frag.add_out('vec4 fragColor[3]');
|
|
frag.n = true;
|
|
frag.add_function(armory.system.CyclesFunctions.str_packFloat);
|
|
frag.add_function(armory.system.CyclesFunctions.str_packFloat2);
|
|
|
|
if (arm.UITrait.inst.brushType == 4) { // Show color map
|
|
frag.add_uniform('sampler2D texcolorid', '_texcolorid');
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(1.0, 1.0), 1.0);');
|
|
frag.write('vec3 idcol = pow(texture(texcolorid, texCoord).rgb, vec3(2.2, 2.2, 2.2));');
|
|
frag.write('fragColor[1] = vec4(idcol.rgb, packFloat2(1.0, 1.0));'); // occ/spec
|
|
}
|
|
else {
|
|
frag.add_function(armory.system.CyclesFunctions.str_octahedronWrap);
|
|
|
|
frag.add_uniform('sampler2D texpaint');
|
|
frag.add_uniform('sampler2D texpaint_nor');
|
|
frag.add_uniform('sampler2D texpaint_pack');
|
|
|
|
frag.write('vec3 basecol;');
|
|
frag.write('float roughness;');
|
|
frag.write('float metallic;');
|
|
frag.write('float occlusion;');
|
|
frag.write('float opacity;');
|
|
frag.write('float specular;');
|
|
|
|
if (UITrait.inst.layers[0].visible) {
|
|
frag.write('basecol = pow(texture(texpaint, texCoord).rgb, vec3(2.2, 2.2, 2.2));');
|
|
|
|
frag.vVec = true;
|
|
frag.add_function(armory.system.CyclesFunctions.str_cotangentFrame);
|
|
#if kha_direct3d11
|
|
frag.write('mat3 TBN = cotangentFrame(n, vVec, texCoord);');
|
|
#else
|
|
frag.write('mat3 TBN = cotangentFrame(n, -vVec, texCoord);');
|
|
#end
|
|
frag.write('vec3 ntex = texture(texpaint_nor, texCoord).rgb;');
|
|
frag.write('n = ntex * 2.0 - 1.0;');
|
|
frag.write('n.y = -n.y;');
|
|
frag.write('n = normalize(mul(n, TBN));');
|
|
|
|
// Height
|
|
if (UITrait.inst.paintHeight) {
|
|
frag.add_uniform('sampler2D texpaint_opt');
|
|
frag.write('vec4 vech;');
|
|
frag.write('vech.x = textureOffset(texpaint_opt, texCoord, ivec2(-1, 0)).b;');
|
|
frag.write('vech.y = textureOffset(texpaint_opt, texCoord, ivec2(1, 0)).b;');
|
|
frag.write('vech.z = textureOffset(texpaint_opt, texCoord, ivec2(0, -1)).b;');
|
|
frag.write('vech.w = textureOffset(texpaint_opt, texCoord, ivec2(0, 1)).b;');
|
|
// Displace normal strength
|
|
frag.write('vech *= 15 * 7; float h1 = vech.x - vech.y; float h2 = vech.z - vech.w;');
|
|
frag.write('vec3 va = normalize(vec3(2.0, 0.0, h1));');
|
|
frag.write('vec3 vb = normalize(vec3(0.0, 2.0, h2));');
|
|
frag.write('vec3 vc = normalize(vec3(h1, h2, 2.0));');
|
|
frag.write('n = normalize(mat3(va, vb, vc) * n);');
|
|
}
|
|
//
|
|
|
|
frag.write('vec4 pack = texture(texpaint_pack, texCoord);');
|
|
frag.write('occlusion = pack.r;');
|
|
frag.write('roughness = pack.g;');
|
|
frag.write('metallic = pack.b;');
|
|
}
|
|
else {
|
|
frag.write('basecol = vec3(0.0, 0.0, 0.0);');
|
|
frag.write('occlusion = 1.0;');
|
|
frag.write('roughness = 1.0;');
|
|
frag.write('metallic = 0.0;');
|
|
frag.write('specular = 1.0;');
|
|
}
|
|
|
|
if (UITrait.inst.layers.length > 1) {
|
|
frag.write('float factor0;');
|
|
frag.write('float factorinv0;');
|
|
frag.write('float nfactor0;');
|
|
frag.write('float nfactorinv0;');
|
|
frag.write('vec4 col_tex0;');
|
|
frag.write('vec4 col_nor0;');
|
|
frag.write('vec3 n0;');
|
|
frag.write('vec4 pack0;');
|
|
for (i in 1...UITrait.inst.layers.length) {
|
|
if (!UITrait.inst.layers[i].visible) continue;
|
|
var id = UITrait.inst.layers[i].id;
|
|
frag.add_uniform('sampler2D texpaint' + id);
|
|
frag.add_uniform('sampler2D texpaint_nor' + id);
|
|
frag.add_uniform('sampler2D texpaint_pack' + id);
|
|
// frag.add_uniform('sampler2D texpaint_opt' + id);
|
|
|
|
frag.write('col_tex0 = texture(texpaint' + id + ', texCoord);');
|
|
frag.write('col_nor0 = texture(texpaint_nor' + id + ', texCoord);');
|
|
|
|
frag.write('factor0 = col_tex0.a;');
|
|
frag.write('factorinv0 = 1.0 - factor0;');
|
|
frag.write('basecol = basecol * factorinv0 + pow(col_tex0.rgb, vec3(2.2, 2.2, 2.2)) * factor0;');
|
|
|
|
frag.write('nfactor0 = col_nor0.a;');
|
|
frag.write('nfactorinv0 = 1.0 - nfactor0;');
|
|
frag.write('n0 = texture(texpaint_nor' + id + ', texCoord).rgb * 2.0 - 1.0;');
|
|
frag.write('n0.y = -n0.y;');
|
|
frag.write('n0 = normalize(mul(n0, TBN));');
|
|
frag.write('n = normalize(n * nfactorinv0 + n0 * nfactor0);');
|
|
|
|
frag.write('pack0 = texture(texpaint_pack' + id + ', texCoord);');
|
|
frag.write('occlusion = occlusion * factorinv0 + pack0.r * factor0;');
|
|
frag.write('roughness = roughness * factorinv0 + pack0.g * factor0;');
|
|
frag.write('metallic = metallic * factorinv0 + pack0.b * factor0;');
|
|
}
|
|
}
|
|
|
|
if (UITrait.inst.drawWireframe) {
|
|
// GL_NV_fragment_shader_barycentric
|
|
// VK_AMD_shader_explicit_vertex_parameter
|
|
frag.add_uniform('sampler2D texuvmap', '_texuvmap');
|
|
frag.write('basecol += texture(texuvmap, texCoord).rgb;');
|
|
// frag.write('if (basecol == vec3(0,0,0)) discard;');
|
|
}
|
|
|
|
frag.write('n /= (abs(n.x) + abs(n.y) + abs(n.z));');
|
|
frag.write('n.xy = n.z >= 0.0 ? n.xy : octahedronWrap(n.xy);');
|
|
if (UITrait.inst.viewportMode == 0) { // Render
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(metallic, roughness), 0.0);');
|
|
frag.write('fragColor[1] = vec4(basecol.rgb, packFloat2(occlusion, 1.0));'); // occ/spec
|
|
}
|
|
else if (UITrait.inst.viewportMode == 1) { // Basecol
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(0.0, 1.0), 0.0);');
|
|
frag.write('fragColor[1] = vec4(basecol.rgb, packFloat2(1.0, 1.0));'); // occ/spec
|
|
}
|
|
else if (UITrait.inst.viewportMode == 2) { // Normal
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(0.0, 1.0), 0.0);');
|
|
frag.write('fragColor[1] = vec4(ntex.rgb, packFloat2(1.0, 1.0));'); // occ/spec
|
|
}
|
|
else if (UITrait.inst.viewportMode == 3) { // Occ
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(0.0, 1.0), 0.0);');
|
|
frag.write('fragColor[1] = vec4(vec3(occlusion, occlusion, occlusion), packFloat2(1.0, 1.0));'); // occ/spec
|
|
}
|
|
else if (UITrait.inst.viewportMode == 4) { // Rough
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(0.0, 1.0), 0.0);');
|
|
frag.write('fragColor[1] = vec4(vec3(roughness, roughness, roughness), packFloat2(1.0, 1.0));'); // occ/spec
|
|
}
|
|
else if (UITrait.inst.viewportMode == 5) { // Met
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(0.0, 1.0), 0.0);');
|
|
frag.write('fragColor[1] = vec4(vec3(metallic, metallic, metallic), packFloat2(1.0, 1.0));'); // occ/spec
|
|
}
|
|
else if (UITrait.inst.viewportMode == 6) { // Texcoord
|
|
frag.write('fragColor[0] = vec4(n.xy, packFloat(0.0, 1.0), 0.0);');
|
|
frag.write('fragColor[1] = vec4(texCoord, 0.0, packFloat2(1.0, 1.0));'); // occ/spec
|
|
}
|
|
}
|
|
|
|
frag.write('vec2 posa = (wvpposition.xy / wvpposition.w) * 0.5 + 0.5;');
|
|
frag.write('vec2 posb = (prevwvpposition.xy / prevwvpposition.w) * 0.5 + 0.5;');
|
|
|
|
if (UITrait.inst.brushType == 2 && UITrait.inst.fillTypeHandle.position == 1) {
|
|
// Face fill - write texcoords into gbuffer
|
|
frag.write('fragColor[2] = vec4(posa - posb, texCoord.xy);');
|
|
}
|
|
else {
|
|
frag.write('fragColor[2] = vec4(posa - posb, 0.0, 0.0);');
|
|
}
|
|
|
|
Cycles.finalize(con_mesh);
|
|
con_mesh.data.shader_from_source = true;
|
|
con_mesh.data.vertex_shader = vert.get();
|
|
con_mesh.data.fragment_shader = frag.get();
|
|
|
|
return con_mesh;
|
|
}
|
|
}
|