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src/display/camera.c

@@ -10,6 +10,7 @@
 void cameraLookAt(camera_t *camera,
   float x, float y, float z, float targetX, float targetY, float targetZ
 ) {
+  glm_mat4_identity(camera->view);
   glm_lookat(
     (vec3){ x, y, z },
     (vec3){ targetX, targetY, targetZ },
@@ -22,6 +23,7 @@ void cameraLook(camera_t *camera,
   float x, float y, float z,
   float pitch, float yaw, float roll
 ) {
+  glm_mat4_identity(camera->view);
   glm_look(
     (vec3){ x, y, z },
     (vec3){ pitch, yaw, roll },
@@ -33,11 +35,13 @@ void cameraLook(camera_t *camera,
 void cameraPerspective(camera_t *camera,
   float fov, float aspect, float near, float far
 ) {
-  glm_perspective(fov, aspect, near, far, camera->projection);
+  glm_mat4_identity(camera->projection);
+  glm_perspective(mathDeg2Rad(fov), aspect, near, far, camera->projection);
 }
 
 void cameraOrtho(camera_t *camera,
   float left, float right, float bottom, float top, float near, float far
 ) {
+  glm_mat4_identity(camera->projection);
   glm_ortho(left, right, bottom, top, near, far, camera->projection);
 }

src/display/camera.h

@@ -5,6 +5,7 @@
 
 #pragma once
 #include <dawn/dawn.h>
+#include "../util/math.h"
 
 /**
  * Make a camera look at a position in world space while itself being positioned
@@ -42,7 +43,7 @@ void cameraLook(camera_t *camera,
  * Make a camera's projection be a 3D Perspective view.
  * 
  * @param camera The camera to project.
- * @param fov The field of view of the camera.
+ * @param fov The field of view of the camera (in degrees).
  * @param aspect The aspect ratio of the camera (w / h)
  * @param near The near plane clip.
  * @param far the far plane clip.

src/display/framebuffer.c

@@ -11,6 +11,10 @@ framebuffer_t * frameBufferCreate(int32_t w, int32_t h) {
   framebuffer_t *fb = malloc(sizeof(framebuffer_t));
   if(fb == NULL) return NULL;
 
+  // At least one pixel
+  if(w <= 0) w = 1;
+  if(h <= 0) h = 1;
+
   // Create Color Attachment texture.
   fb->texture = textureCreate(w, h, NULL);
   if(fb->texture == NULL) {

src/display/shader.c

@@ -103,8 +103,8 @@ void shaderUse(shader_t *shader) {
 }
 
 void shaderUseCamera(shader_t *shader, camera_t *camera) {
-  glUniformMatrix4fv(shader->uniView, 1, GL_FALSE, (float*)camera->view);
-  glUniformMatrix4fv(shader->uniProj, 1, GL_FALSE, (float*)camera->projection);
+  glUniformMatrix4fv(shader->uniView, 1, GL_FALSE, camera->view[0]);
+  glUniformMatrix4fv(shader->uniProj, 1, GL_FALSE, camera->projection[0]);
 }
 
 void shaderUseTexture(shader_t *shader, texture_t *texture) {
@@ -131,11 +131,13 @@ void shaderUsePosition(shader_t *shader,
   //Rotation, we do each axis individually
   axis[0] = 1, axis[1] = 0, axis[2] = 0;
   glm_rotate(MATRIX_POSITION, pitch, axis);
+
   axis[0] = 0, axis[1] = 1;
   glm_rotate(MATRIX_POSITION, yaw, axis);
+  
   axis[1] = 0, axis[2] = 1;
   glm_rotate(MATRIX_POSITION, roll, axis);
 
   //Send to the shader.
-  glUniformMatrix4fv(shader->uniModl, 1, GL_FALSE, (float*)MATRIX_POSITION);
+  glUniformMatrix4fv(shader->uniModl, 1, GL_FALSE, MATRIX_POSITION[0]);
 }