*光源

2 files changed, 11 insertions, 7 deletions

diff --git a/src/shaders/common_header.h b/src/shaders/common_header.h
index 848fe98..9741a36 100644
--- a/src/shaders/common_header.h
+++ b/src/shaders/common_header.h
@@ -3,5 +3,6 @@
 
 #include "../core/shader.h"
 
+extern void ssrR_putline(int x0, int y0, int x1, int y1, Color color);
 
 #endif
\ No newline at end of file
diff --git a/src/shaders/unlit.c b/src/shaders/unlit.c
index ec6949f..ab060cd 100644
--- a/src/shaders/unlit.c
+++ b/src/shaders/unlit.c
@@ -1,23 +1,26 @@
 #include "common_header.h"
 
-#define model_matrix UM4(0)
+#define light UV3(0)
 
-#define world_normal reg_v3_00
-#define vcolor  reg_v4_00
+#define vert_color reg_v4_00
 
 static void vert(UniformCollection* uniforms, VertexShaderIn* in, Vec4* clipcoord) {
 	static Vec4 p; p.xyz = in->vertex->position; p.w = 1;
 	mat4_applytovec4(uniforms->mvp, &p, clipcoord);
-	model_matrix;
+	color_tocolor32(in->vertex->color, vert_color);
 }
 
 static bool frag(UniformCollection* uniforms, FragmentShaderIn* in, Color* color) {
-	*color = in->color;
-	world_normal;
+	vec3_normalize(light, light);
+	vec3_normalize(&in->normal, &in->normal);
+	float strongness = vec3_dot(light, &in->normal);
+	vec3_scale(vert_color, 1 - clamp(strongness, 0, 1), vert_color);
+	*color = color32_tocolor(vert_color);
+	
 	return 1;
 }
 
 Program ssr_built_in_shader_unlit = { 
 	vert, frag,
-	VARYING_COLOR
+	VARYING_NORMAL | VARYING_V4_00
 };