Implement raytraced lightmap

2019-01-09 23:32:10 +01:00
parent 3dde1e1083
commit 9787175b13
12 changed files with 240 additions and 28 deletions
--- a/src/texture.h
+++ b/src/texture.h
@@ -27,12 +27,12 @@ public:
 class Sampler
 {
    GLuint id = 0;
-    GLint current_unit = 0;
+    mutable GLint current_unit = 0;
 public:
    bool create(GLint filter = GL_LINEAR, GLint wrap = GL_CLAMP_TO_EDGE);
    void set(GLint filter = GL_LINEAR, GLint wrap = GL_CLAMP_TO_EDGE);
    void set_filter(GLint filter_min, GLint filter_mag);
-    void bind(int unit);
+    void bind(int unit) const;
    void unbind();
    bool ready() const { return id != 0; }
 };