84d734da0e
-Removed normal/specular properties from nodes -Create CanvasTexture, which can contain normal/specular channels -Refactored, optimized and simplified 2D shaders -Use atlas for light textures. -Use a shadow atlas for shadow textures. -Use both items aboves to make light rendering stateless (faster). -Reorganized uniform sets for more efficiency.
576 lines
19 KiB
GLSL
576 lines
19 KiB
GLSL
#[vertex]
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#version 450
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VERSION_DEFINES
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#ifdef USE_ATTRIBUTES
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layout(location = 0) in vec2 vertex_attrib;
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layout(location = 3) in vec4 color_attrib;
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layout(location = 4) in vec2 uv_attrib;
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layout(location = 6) in uvec4 bones_attrib;
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#endif
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#include "canvas_uniforms_inc.glsl"
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layout(location = 0) out vec2 uv_interp;
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layout(location = 1) out vec4 color_interp;
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layout(location = 2) out vec2 vertex_interp;
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#ifdef USE_NINEPATCH
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layout(location = 3) out vec2 pixel_size_interp;
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#endif
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#ifdef USE_MATERIAL_UNIFORMS
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layout(set = 1, binding = 0, std140) uniform MaterialUniforms{
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/* clang-format off */
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MATERIAL_UNIFORMS
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/* clang-format on */
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} material;
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#endif
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/* clang-format off */
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VERTEX_SHADER_GLOBALS
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/* clang-format on */
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void main() {
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vec4 instance_custom = vec4(0.0);
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#ifdef USE_PRIMITIVE
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//weird bug,
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//this works
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vec2 vertex;
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vec2 uv;
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vec4 color;
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if (gl_VertexIndex == 0) {
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vertex = draw_data.points[0];
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uv = draw_data.uvs[0];
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color = vec4(unpackHalf2x16(draw_data.colors[0]), unpackHalf2x16(draw_data.colors[1]));
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} else if (gl_VertexIndex == 1) {
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vertex = draw_data.points[1];
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uv = draw_data.uvs[1];
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color = vec4(unpackHalf2x16(draw_data.colors[2]), unpackHalf2x16(draw_data.colors[3]));
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} else {
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vertex = draw_data.points[2];
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uv = draw_data.uvs[2];
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color = vec4(unpackHalf2x16(draw_data.colors[4]), unpackHalf2x16(draw_data.colors[5]));
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}
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uvec4 bones = uvec4(0, 0, 0, 0);
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#elif defined(USE_ATTRIBUTES)
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vec2 vertex = vertex_attrib;
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vec4 color = color_attrib;
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vec2 uv = uv_attrib;
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uvec4 bones = bones_attrib;
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#else
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vec2 vertex_base_arr[4] = vec2[](vec2(0.0, 0.0), vec2(0.0, 1.0), vec2(1.0, 1.0), vec2(1.0, 0.0));
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vec2 vertex_base = vertex_base_arr[gl_VertexIndex];
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vec2 uv = draw_data.src_rect.xy + abs(draw_data.src_rect.zw) * ((draw_data.flags & FLAGS_TRANSPOSE_RECT) != 0 ? vertex_base.yx : vertex_base.xy);
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vec4 color = draw_data.modulation;
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vec2 vertex = draw_data.dst_rect.xy + abs(draw_data.dst_rect.zw) * mix(vertex_base, vec2(1.0, 1.0) - vertex_base, lessThan(draw_data.src_rect.zw, vec2(0.0, 0.0)));
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uvec4 bones = uvec4(0, 0, 0, 0);
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#endif
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mat4 world_matrix = mat4(vec4(draw_data.world_x, 0.0, 0.0), vec4(draw_data.world_y, 0.0, 0.0), vec4(0.0, 0.0, 1.0, 0.0), vec4(draw_data.world_ofs, 0.0, 1.0));
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#if 0
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if (draw_data.flags & FLAGS_INSTANCING_ENABLED) {
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uint offset = draw_data.flags & FLAGS_INSTANCING_STRIDE_MASK;
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offset *= gl_InstanceIndex;
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mat4 instance_xform = mat4(
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vec4(texelFetch(instancing_buffer, offset + 0), texelFetch(instancing_buffer, offset + 1), 0.0, texelFetch(instancing_buffer, offset + 3)),
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vec4(texelFetch(instancing_buffer, offset + 4), texelFetch(instancing_buffer, offset + 5), 0.0, texelFetch(instancing_buffer, offset + 7)),
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vec4(0.0, 0.0, 1.0, 0.0),
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vec4(0.0, 0.0, 0.0, 1.0));
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offset += 8;
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if (draw_data.flags & FLAGS_INSTANCING_HAS_COLORS) {
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vec4 instance_color;
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if (draw_data.flags & FLAGS_INSTANCING_COLOR_8_BIT) {
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uint bits = floatBitsToUint(texelFetch(instancing_buffer, offset));
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instance_color = unpackUnorm4x8(bits);
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offset += 1;
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} else {
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instance_color = vec4(texelFetch(instancing_buffer, offset + 0), texelFetch(instancing_buffer, offset + 1), texelFetch(instancing_buffer, offset + 2), texelFetch(instancing_buffer, offset + 3));
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offset += 4;
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}
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color *= instance_color;
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}
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if (draw_data.flags & FLAGS_INSTANCING_HAS_CUSTOM_DATA) {
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if (draw_data.flags & FLAGS_INSTANCING_CUSTOM_DATA_8_BIT) {
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uint bits = floatBitsToUint(texelFetch(instancing_buffer, offset));
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instance_custom = unpackUnorm4x8(bits);
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} else {
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instance_custom = vec4(texelFetch(instancing_buffer, offset + 0), texelFetch(instancing_buffer, offset + 1), texelFetch(instancing_buffer, offset + 2), texelFetch(instancing_buffer, offset + 3));
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}
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}
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}
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#endif
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#if !defined(USE_ATTRIBUTES) && !defined(USE_PRIMITIVE)
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if (bool(draw_data.flags & FLAGS_USING_PARTICLES)) {
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//scale by texture size
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vertex /= draw_data.color_texture_pixel_size;
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}
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#endif
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#ifdef USE_POINT_SIZE
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float point_size = 1.0;
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#endif
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{
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/* clang-format off */
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VERTEX_SHADER_CODE
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/* clang-format on */
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}
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#ifdef USE_NINEPATCH
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pixel_size_interp = abs(draw_data.dst_rect.zw) * vertex_base;
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#endif
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#if !defined(SKIP_TRANSFORM_USED)
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vertex = (world_matrix * vec4(vertex, 0.0, 1.0)).xy;
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#endif
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color_interp = color;
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if (bool(draw_data.flags & FLAGS_USE_PIXEL_SNAP)) {
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vertex = floor(vertex + 0.5);
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// precision issue on some hardware creates artifacts within texture
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// offset uv by a small amount to avoid
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uv += 1e-5;
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}
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#ifdef USE_ATTRIBUTES
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#if 0
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if (bool(draw_data.flags & FLAGS_USE_SKELETON) && bone_weights != vec4(0.0)) { //must be a valid bone
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//skeleton transform
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ivec4 bone_indicesi = ivec4(bone_indices);
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uvec2 tex_ofs = bone_indicesi.x * 2;
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mat2x4 m;
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m = mat2x4(
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texelFetch(skeleton_buffer, tex_ofs + 0),
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texelFetch(skeleton_buffer, tex_ofs + 1)) *
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bone_weights.x;
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tex_ofs = bone_indicesi.y * 2;
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m += mat2x4(
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texelFetch(skeleton_buffer, tex_ofs + 0),
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texelFetch(skeleton_buffer, tex_ofs + 1)) *
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bone_weights.y;
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tex_ofs = bone_indicesi.z * 2;
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m += mat2x4(
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texelFetch(skeleton_buffer, tex_ofs + 0),
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texelFetch(skeleton_buffer, tex_ofs + 1)) *
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bone_weights.z;
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tex_ofs = bone_indicesi.w * 2;
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m += mat2x4(
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texelFetch(skeleton_buffer, tex_ofs + 0),
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texelFetch(skeleton_buffer, tex_ofs + 1)) *
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bone_weights.w;
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mat4 bone_matrix = skeleton_data.skeleton_transform * transpose(mat4(m[0], m[1], vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0))) * skeleton_data.skeleton_transform_inverse;
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//outvec = bone_matrix * outvec;
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}
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#endif
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#endif
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vertex = (canvas_data.canvas_transform * vec4(vertex, 0.0, 1.0)).xy;
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vertex_interp = vertex;
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uv_interp = uv;
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gl_Position = canvas_data.screen_transform * vec4(vertex, 0.0, 1.0);
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#ifdef USE_POINT_SIZE
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gl_PointSize = point_size;
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#endif
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}
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#[fragment]
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#version 450
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VERSION_DEFINES
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#include "canvas_uniforms_inc.glsl"
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layout(location = 0) in vec2 uv_interp;
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layout(location = 1) in vec4 color_interp;
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layout(location = 2) in vec2 vertex_interp;
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#ifdef USE_NINEPATCH
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layout(location = 3) in vec2 pixel_size_interp;
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#endif
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layout(location = 0) out vec4 frag_color;
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#ifdef USE_MATERIAL_UNIFORMS
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layout(set = 1, binding = 0, std140) uniform MaterialUniforms{
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/* clang-format off */
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MATERIAL_UNIFORMS
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/* clang-format on */
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} material;
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#endif
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/* clang-format off */
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FRAGMENT_SHADER_GLOBALS
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/* clang-format on */
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#ifdef LIGHT_SHADER_CODE_USED
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vec4 light_compute(
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vec3 light_vertex,
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vec3 light_position,
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vec3 normal,
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vec4 light_color,
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float light_energy,
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vec4 specular_shininess,
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inout vec4 shadow_modulate,
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vec2 screen_uv,
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vec2 uv,
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vec4 color) {
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vec4 light = vec4(0.0);
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/* clang-format off */
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LIGHT_SHADER_CODE
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/* clang-format on */
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return light;
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}
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#endif
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#ifdef USE_NINEPATCH
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float map_ninepatch_axis(float pixel, float draw_size, float tex_pixel_size, float margin_begin, float margin_end, int np_repeat, inout int draw_center) {
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float tex_size = 1.0 / tex_pixel_size;
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if (pixel < margin_begin) {
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return pixel * tex_pixel_size;
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} else if (pixel >= draw_size - margin_end) {
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return (tex_size - (draw_size - pixel)) * tex_pixel_size;
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} else {
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if (!bool(draw_data.flags & FLAGS_NINEPACH_DRAW_CENTER)) {
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draw_center--;
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}
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// np_repeat is passed as uniform using NinePatchRect::AxisStretchMode enum.
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if (np_repeat == 0) { // Stretch.
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// Convert to ratio.
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float ratio = (pixel - margin_begin) / (draw_size - margin_begin - margin_end);
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// Scale to source texture.
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return (margin_begin + ratio * (tex_size - margin_begin - margin_end)) * tex_pixel_size;
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} else if (np_repeat == 1) { // Tile.
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// Convert to offset.
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float ofs = mod((pixel - margin_begin), tex_size - margin_begin - margin_end);
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// Scale to source texture.
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return (margin_begin + ofs) * tex_pixel_size;
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} else if (np_repeat == 2) { // Tile Fit.
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// Calculate scale.
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float src_area = draw_size - margin_begin - margin_end;
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float dst_area = tex_size - margin_begin - margin_end;
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float scale = max(1.0, floor(src_area / max(dst_area, 0.0000001) + 0.5));
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// Convert to ratio.
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float ratio = (pixel - margin_begin) / src_area;
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ratio = mod(ratio * scale, 1.0);
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// Scale to source texture.
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return (margin_begin + ratio * dst_area) * tex_pixel_size;
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} else { // Shouldn't happen, but silences compiler warning.
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return 0.0;
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}
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}
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}
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#endif
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void main() {
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vec4 color = color_interp;
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vec2 uv = uv_interp;
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vec2 vertex = vertex_interp;
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#if !defined(USE_ATTRIBUTES) && !defined(USE_PRIMITIVE)
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#ifdef USE_NINEPATCH
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int draw_center = 2;
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uv = vec2(
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map_ninepatch_axis(pixel_size_interp.x, abs(draw_data.dst_rect.z), draw_data.color_texture_pixel_size.x, draw_data.ninepatch_margins.x, draw_data.ninepatch_margins.z, int(draw_data.flags >> FLAGS_NINEPATCH_H_MODE_SHIFT) & 0x3, draw_center),
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map_ninepatch_axis(pixel_size_interp.y, abs(draw_data.dst_rect.w), draw_data.color_texture_pixel_size.y, draw_data.ninepatch_margins.y, draw_data.ninepatch_margins.w, int(draw_data.flags >> FLAGS_NINEPATCH_V_MODE_SHIFT) & 0x3, draw_center));
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if (draw_center == 0) {
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color.a = 0.0;
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}
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uv = uv * draw_data.src_rect.zw + draw_data.src_rect.xy; //apply region if needed
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#endif
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if (bool(draw_data.flags & FLAGS_CLIP_RECT_UV)) {
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uv = clamp(uv, draw_data.src_rect.xy, draw_data.src_rect.xy + abs(draw_data.src_rect.zw));
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}
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#endif
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color *= texture(sampler2D(color_texture, texture_sampler), uv);
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uint light_count = (draw_data.flags >> FLAGS_LIGHT_COUNT_SHIFT) & 0xF; //max 16 lights
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vec3 normal;
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#if defined(NORMAL_USED)
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bool normal_used = true;
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#else
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bool normal_used = false;
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#endif
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if (normal_used || (light_count > 0 && bool(draw_data.flags & FLAGS_DEFAULT_NORMAL_MAP_USED))) {
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normal.xy = texture(sampler2D(normal_texture, texture_sampler), uv).xy * vec2(2.0, -2.0) - vec2(1.0, -1.0);
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normal.z = sqrt(1.0 - dot(normal.xy, normal.xy));
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normal_used = true;
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} else {
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normal = vec3(0.0, 0.0, 1.0);
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}
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vec4 specular_shininess;
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#if defined(SPECULAR_SHININESS_USED)
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bool specular_shininess_used = true;
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#else
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bool specular_shininess_used = false;
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#endif
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if (specular_shininess_used || (light_count > 0 && normal_used && bool(draw_data.flags & FLAGS_DEFAULT_SPECULAR_MAP_USED))) {
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specular_shininess = texture(sampler2D(specular_texture, texture_sampler), uv);
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specular_shininess *= unpackUnorm4x8(draw_data.specular_shininess);
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specular_shininess_used = true;
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} else {
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specular_shininess = vec4(1.0);
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}
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#if defined(SCREEN_UV_USED)
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vec2 screen_uv = gl_FragCoord.xy * canvas_data.screen_pixel_size;
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#else
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vec2 screen_uv = vec2(0.0);
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#endif
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vec3 light_vertex = vec3(vertex, 0.0);
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vec2 shadow_vertex = vertex;
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{
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float normal_depth = 1.0;
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#if defined(NORMALMAP_USED)
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vec3 normal_map = vec3(0.0, 0.0, 1.0);
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normal_used = true;
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#endif
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/* clang-format off */
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FRAGMENT_SHADER_CODE
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/* clang-format on */
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#if defined(NORMALMAP_USED)
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normal = mix(vec3(0.0, 0.0, 1.0), normal_map * vec3(2.0, -2.0, 1.0) - vec3(1.0, -1.0, 0.0), normal_depth);
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#endif
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}
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if (normal_used) {
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//convert by item transform
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normal.xy = mat2(normalize(draw_data.world_x), normalize(draw_data.world_y)) * normal.xy;
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//convert by canvas transform
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normal = normalize((canvas_data.canvas_normal_transform * vec4(normal, 0.0)).xyz);
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}
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vec4 base_color = color;
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if (bool(draw_data.flags & FLAGS_USING_LIGHT_MASK)) {
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color = vec4(0.0); //invisible by default due to using light mask
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}
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color *= canvas_data.canvas_modulation;
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#ifdef USE_LIGHTING
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for (uint i = 0; i < MAX_LIGHTS_PER_ITEM; i++) {
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if (i >= light_count) {
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break;
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}
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uint light_base;
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if (i < 8) {
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if (i < 4) {
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light_base = draw_data.lights[0];
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} else {
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light_base = draw_data.lights[1];
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}
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} else {
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if (i < 12) {
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light_base = draw_data.lights[2];
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} else {
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light_base = draw_data.lights[3];
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}
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}
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light_base >>= (i & 3) * 8;
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light_base &= 0xFF;
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vec2 tex_uv = (vec4(vertex, 0.0, 1.0) * mat4(light_array.data[light_base].texture_matrix[0], light_array.data[light_base].texture_matrix[1], vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0))).xy; //multiply inverse given its transposed. Optimizer removes useless operations.
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vec2 tex_uv_atlas = tex_uv * light_array.data[light_base].atlas_rect.zw + light_array.data[light_base].atlas_rect.xy;
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vec4 light_color = textureLod(sampler2D(atlas_texture, texture_sampler), tex_uv_atlas, 0.0);
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vec4 light_base_color = light_array.data[light_base].color;
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#ifdef LIGHT_SHADER_CODE_USED
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vec4 shadow_modulate = vec4(1.0);
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vec3 light_position = vec3(light_array.data[light_base].position, light_array.data[light_base].height);
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light_color.rgb *= light_base_color.rgb;
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light_color = light_compute(light_vertex, light_position, normal, light_color, light_base_color.a, specular_shininess, shadow_modulate, screen_uv, color, uv);
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#else
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light_color.rgb *= light_base_color.rgb * light_base_color.a;
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if (normal_used) {
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vec3 light_pos = vec3(light_array.data[light_base].position, light_array.data[light_base].height);
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vec3 pos = light_vertex;
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vec3 light_vec = normalize(light_pos - pos);
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float cNdotL = max(0.0, dot(normal, light_vec));
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if (specular_shininess_used) {
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//blinn
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vec3 view = vec3(0.0, 0.0, 1.0); // not great but good enough
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vec3 half_vec = normalize(view + light_vec);
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|
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float cNdotV = max(dot(normal, view), 0.0);
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float cNdotH = max(dot(normal, half_vec), 0.0);
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float cVdotH = max(dot(view, half_vec), 0.0);
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float cLdotH = max(dot(light_vec, half_vec), 0.0);
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float shininess = exp2(15.0 * specular_shininess.a + 1.0) * 0.25;
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float blinn = pow(cNdotH, shininess);
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blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI));
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float s = (blinn) / max(4.0 * cNdotV * cNdotL, 0.75);
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|
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light_color.rgb = specular_shininess.rgb * light_base_color.rgb * s + light_color.rgb * cNdotL;
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} else {
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light_color.rgb *= cNdotL;
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}
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}
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#endif
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if (any(lessThan(tex_uv, vec2(0.0, 0.0))) || any(greaterThanEqual(tex_uv, vec2(1.0, 1.0)))) {
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//if outside the light texture, light color is zero
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light_color.a = 0.0;
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|
}
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|
|
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if (bool(light_array.data[light_base].flags & LIGHT_FLAGS_HAS_SHADOW)) {
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vec2 shadow_pos = (vec4(shadow_vertex, 0.0, 1.0) * mat4(light_array.data[light_base].shadow_matrix[0], light_array.data[light_base].shadow_matrix[1], vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0))).xy; //multiply inverse given its transposed. Optimizer removes useless operations.
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|
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vec2 pos_norm = normalize(shadow_pos);
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vec2 pos_abs = abs(pos_norm);
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vec2 pos_box = pos_norm / max(pos_abs.x, pos_abs.y);
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vec2 pos_rot = pos_norm * mat2(vec2(0.7071067811865476, -0.7071067811865476), vec2(0.7071067811865476, 0.7071067811865476)); //is there a faster way to 45 degrees rot?
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float tex_ofs;
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float distance;
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|
if (pos_rot.y > 0) {
|
|
if (pos_rot.x > 0) {
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tex_ofs = pos_box.y * 0.125 + 0.125;
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distance = shadow_pos.x;
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|
} else {
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|
tex_ofs = pos_box.x * -0.125 + (0.25 + 0.125);
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|
distance = shadow_pos.y;
|
|
}
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|
} else {
|
|
if (pos_rot.x < 0) {
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|
tex_ofs = pos_box.y * -0.125 + (0.5 + 0.125);
|
|
distance = -shadow_pos.x;
|
|
} else {
|
|
tex_ofs = pos_box.x * 0.125 + (0.75 + 0.125);
|
|
distance = -shadow_pos.y;
|
|
}
|
|
}
|
|
|
|
distance *= light_array.data[light_base].shadow_zfar_inv;
|
|
|
|
//float distance = length(shadow_pos);
|
|
float shadow;
|
|
uint shadow_mode = light_array.data[light_base].flags & LIGHT_FLAGS_FILTER_MASK;
|
|
|
|
vec4 shadow_uv = vec4(tex_ofs, light_array.data[light_base].shadow_y_ofs, distance, 1.0);
|
|
|
|
if (shadow_mode == LIGHT_FLAGS_SHADOW_NEAREST) {
|
|
shadow = textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv, 0.0).x;
|
|
} else if (shadow_mode == LIGHT_FLAGS_SHADOW_PCF5) {
|
|
vec4 shadow_pixel_size = vec4(light_array.data[light_base].shadow_pixel_size, 0.0, 0.0, 0.0);
|
|
shadow = 0.0;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size * 2.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size * 2.0, 0.0).x;
|
|
shadow /= 5.0;
|
|
} else { //PCF13
|
|
vec4 shadow_pixel_size = vec4(light_array.data[light_base].shadow_pixel_size, 0.0, 0.0, 0.0);
|
|
shadow = 0.0;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size * 6.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size * 5.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size * 4.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size * 3.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size * 2.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv - shadow_pixel_size, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size * 2.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size * 3.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size * 4.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size * 5.0, 0.0).x;
|
|
shadow += textureProjLod(sampler2DShadow(shadow_atlas_texture, shadow_sampler), shadow_uv + shadow_pixel_size * 6.0, 0.0).x;
|
|
shadow /= 13.0;
|
|
}
|
|
|
|
vec4 shadow_color = unpackUnorm4x8(light_array.data[light_base].shadow_color);
|
|
#ifdef LIGHT_SHADER_CODE_USED
|
|
shadow_color *= shadow_modulate;
|
|
#endif
|
|
|
|
shadow_color.a *= light_color.a; //respect light alpha
|
|
|
|
light_color = mix(light_color, shadow_color, shadow);
|
|
//light_color = mix(light_color, shadow_color, shadow);
|
|
}
|
|
|
|
uint blend_mode = light_array.data[light_base].flags & LIGHT_FLAGS_BLEND_MASK;
|
|
|
|
switch (blend_mode) {
|
|
case LIGHT_FLAGS_BLEND_MODE_ADD: {
|
|
color.rgb += light_color.rgb * light_color.a;
|
|
} break;
|
|
case LIGHT_FLAGS_BLEND_MODE_SUB: {
|
|
color.rgb -= light_color.rgb * light_color.a;
|
|
} break;
|
|
case LIGHT_FLAGS_BLEND_MODE_MIX: {
|
|
color.rgb = mix(color.rgb, light_color.rgb, light_color.a);
|
|
} break;
|
|
case LIGHT_FLAGS_BLEND_MODE_MASK: {
|
|
light_color.a *= base_color.a;
|
|
color.rgb = mix(color.rgb, light_color.rgb, light_color.a);
|
|
} break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
frag_color = color;
|
|
}
|