Format

base/Sources/make_voxel.ts

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+
+///if arm_voxels
+function make_voxel_run(data: shader_context_t) {
+	let structure: vertex_struct_t = g4_vertex_struct_create();
+	g4_vertex_struct_add(structure, "pos", vertex_data_t.I16_4X_NORM);
+	g4_vertex_struct_add(structure, "nor", vertex_data_t.I16_2X_NORM);
+	g4_vertex_struct_add(structure, "tex", vertex_data_t.I16_2X_NORM);
+
+	let pipe_state: pipeline_t = data._.pipe_state;
+	pipe_state.input_layout = [structure];
+	data.vertex_elements = [
+		{name: "pos", data: "short4norm"},
+		{name: "nor", data: "short2norm"},
+		{name: "tex", data: "short2norm"}
+	];
+
+	// ///if arm_skin
+	// let is_mesh: bool = raw.object.constructor == mesh_object_t;
+	// let skin: bool = is_mesh && cast(raw.object, mesh_object_t).data.geom.bones != null;
+	// if (skin) {
+	// 	g4_vertex_structure_add(structure, "bone", vertex_data_t.I16_4X_Normalized);
+	// 	g4_vertex_structure_add(structure, "weight", vertex_data_t.I16_4X_Normalized);
+	// 	data.raw.vertex_elements.push({ name: "bone", data: 'short4norm' });
+	// 	data.raw.vertex_elements.push({ name: "weight", data: 'short4norm' });
+	// }
+	// ///end
+
+	pipe_state.vertex_shader = g4_shader_from_source(make_voxel_source(), shader_type_t.VERTEX);
+
+	g4_pipeline_compile(pipe_state);
+
+	data.constants = [
+		{ name: "W", type: "mat4", link: "_world_matrix" },
+		{ name: "N", type: "mat3", link: "_normal_matrix" }
+	];
+	data._.constants = [
+		g4_pipeline_get_const_loc(pipe_state, "W"),
+		g4_pipeline_get_const_loc(pipe_state, "N")
+	];
+	data.texture_units = [
+		{ name: "texpaint_pack" },
+		{ name: "voxels", image_uniform: true }
+	];
+	data._.tex_units = [
+		g4_pipeline_get_tex_unit(pipe_state, "texpaint_pack"),
+		g4_pipeline_get_tex_unit(pipe_state, "voxels")
+	];
+}
+
+function make_voxel_source(): string {
+	let ds: f32 = MakeMaterial.get_displace_strength();
+	///if krom_direct3d11
+	return `#define vec3 float3
+	uniform float4x4 W;
+	uniform float3x3 N;
+	Texture2D<float4> texpaint_pack;
+	SamplerState _texpaint_pack_sampler;
+	struct SPIRV_Cross_Input { float4 pos : TEXCOORD1; float2 nor : TEXCOORD0; float2 tex : TEXCOORD2; };
+	struct SPIRV_Cross_Output { float4 svpos : SV_POSITION; };
+	SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input) {
+		SPIRV_Cross_Output stage_output;
+		${MakeMaterial.voxelgi_half_extents()}
+		stage_output.svpos.xyz = mul(float4(stage_input.pos.xyz, 1.0), W).xyz / voxelgiHalfExtents.xxx;
+		float3 wnormal = normalize(mul(float3(stage_input.nor.xy, stage_input.pos.w), N));
+		float height = texpaint_pack.SampleLevel(_texpaint_pack_sampler, stage_input.tex, 0.0).a;
+		stage_output.svpos.xyz += wnormal * height.xxx * float3(${ds}, ${ds}, ${ds});
+		stage_output.svpos.w = 1.0;
+		return stage_output;
+	}`;
+	///else
+	return `#version 450
+	in vec4 pos;
+	in vec2 nor;
+	in vec2 tex;
+	out vec3 voxpositionGeom;
+	uniform mat4 W;
+	uniform mat3 N;
+	uniform sampler2D texpaint_pack;
+	void main() {
+		${MakeMaterial.voxelgi_half_extents()}
+		voxpositionGeom = vec3(W * vec4(pos.xyz, 1.0)) / voxelgiHalfExtents;
+		vec3 wnormal = normalize(N * vec3(nor.xy, pos.w));
+		float height = textureLod(texpaint_pack, tex, 0.0).a;
+		voxpositionGeom += wnormal * vec3(height) * vec3(${ds});
+	}`;
+	///end
+}
+///end