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Fix lighting of rotated particles in 2D

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Custom instance transform was not taken into account for normal map
calculation. Also renamed `extra_matrix2` to `extra_matrix_instance` for
more clarity.
This commit is contained in:
JFonS 2018-09-18 22:54:03 +02:00
parent f148e8eede
commit 8f4f79c767
1 changed files with 5 additions and 5 deletions
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10
drivers/gles3/shaders/canvas.glsl
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@ -120,12 +120,12 @@ void main() {
vec4 color = color_attrib;
#ifdef USE_INSTANCING
mat4 extra_matrix2 = extra_matrix * transpose(mat4(instance_xform0, instance_xform1, instance_xform2, vec4(0.0, 0.0, 0.0, 1.0)));
mat4 extra_matrix_instance = extra_matrix * transpose(mat4(instance_xform0, instance_xform1, instance_xform2, vec4(0.0, 0.0, 0.0, 1.0)));
color *= instance_color;
vec4 instance_custom = instance_custom_data;
#else
mat4 extra_matrix2 = extra_matrix;
mat4 extra_matrix_instance = extra_matrix;
vec4 instance_custom = vec4(0.0);
#endif
@ -157,7 +157,7 @@ void main() {
#endif
#define extra_matrix extra_matrix2
#define extra_matrix extra_matrix_instance
{
/* clang-format off */
@ -246,8 +246,8 @@ VERTEX_SHADER_CODE
pos = outvec.xy;
#endif
local_rot.xy = normalize((modelview_matrix * (extra_matrix * vec4(1.0, 0.0, 0.0, 0.0))).xy);
local_rot.zw = normalize((modelview_matrix * (extra_matrix * vec4(0.0, 1.0, 0.0, 0.0))).xy);
local_rot.xy = normalize((modelview_matrix * (extra_matrix_instance * vec4(1.0, 0.0, 0.0, 0.0))).xy);
local_rot.zw = normalize((modelview_matrix * (extra_matrix_instance * vec4(0.0, 1.0, 0.0, 0.0))).xy);
#ifdef USE_TEXTURE_RECT
local_rot.xy *= sign(src_rect.z);
local_rot.zw *= sign(src_rect.w);