Jay Dolan jdolan

Staff Engineer @ChewyInc Project Lead @quetoo

jdolan / index.html

Created July 23, 2015 18:42

Bassdrive HTML5 player

	<audio controls autoplay="autoplay"><source src="http:///shouthost.com.17.streams.bassdrive.com:8200/;stream.mp3" type="audio/mp3">
	Your browser does not support the audio element.
	</audio>

jdolan / r_occlude.c

Created January 10, 2023 14:29

Decoupling renderer framerate from occlusion query framerate.

	/**
	* @brief Updates and re-draws active occlusion queries for the current frame.
	*/
	void R_UpdateOcclusionQueries(r_view_t *view) {

	if (!r_occlude->integer) {
	return;
	}

	if (view->flags & VIEW_FLAG_NO_DELTA) {

jdolan / r_occlude_wrong.c

Created January 10, 2023 14:32

Naive OpenGL Occlusion Query implementation (don't do this).

	glBeginQuery(GL_ANY_SAMPLES_PASSED, query->name);
	glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_INT, query->elements); // draw the AABB
	glEndQuery(GL_ANY_SAMPLES_PASSED);

	glGetQueryObjectiv(query->name, GL_QUERY_RESULT, &query->result);
	if (query->result) {
	// draw the object(s) the query was guarding
	}

jdolan / shadow_gs.glsl

Created January 10, 2023 14:34

Point shadows geometry shader using cubemap array texture

	void main() {

	light_t light = lights[light_index];

	vec4 translate = vec4(-light.model.xyz, 0.0);

	for (int i = 0; i < 6; i++) {
	gl_Layer = light_index * 6 + i;

	for (int j = 0; j < 3; j++) {

jdolan / shadowmapping.glsl

Created January 10, 2023 14:35

Shadow sampler of a cubemap array texture in GLSL

	uniform samplerCubeArrayShadow texture_shadowmap_cube;

	/**
	* @return The fraction of the sample that is _not_ shadowed (0.0 - 1.0).
	*/
	float sample_shadowmap(in light_t light, in int index) {

	// the position of the fragment in light space
	vec4 position = vec4(light.model.xyz - vertex.model, 1.0);

jdolan / render_loop.c

Last active January 10, 2023 14:45

This won't work, either..